/**
 * Created by Administrator on 2019/5/14.
 */
for(var a =1;a<15;a++){
    for(var p =1;p<15-a;p++){
        document.write('&nbsp;');
    }
    for (var m =1;m<=2*a-1;m++){
        document.write("*");
    }
    document.write("<br>");
}
